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#1
18-10-14, 05:53
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Mystery unit
What wireless set is this unit used with?
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2 
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#2
18-10-14, 10:00
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bigger
It looks like a power supply of some sort. The 3 pin sockets look like 11 set .
Can you post another, larger picture ? We cannot read the plate on it Mike
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad
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#3
18-10-14, 11:42
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Quote:
It's "Unit, Signalling, V.F., No.3 Mk.II (YB/YA.3814) or Mk.III (YB.02227)" and converts low frequency signalling currents (i.e: magneto ringing) into 500Hz interrupted at the signalling frequency (and vice versa). It's used for signalling over a repeatered audio frequency or carrier telephony circuit, and is inserted at the 2-wire audio portion (i.e: the local and remote ends). Someone has removed the data plate from top left, and it's missing the outer wooden case that has a circuit diagram screwed to the lid. Chris.
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Linear Mode
